150, Great Portland Street, London, W1W 6QD
Approved on 5 September 2025
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
Proposal
Prospect House NMA
- Submitted
- 12 August 2025
- Council
- City of Westminster
- ReceivedSubmitted12 Aug
- ValidatedValidated
- Consult.Consultation
- TargetTarget Date
- DecidedDecided5 Sep
Decided in 24 days (council typically 49)
About this application
This is a planning application at 150, Great Portland Street, London, W1W 6QD. Westminster has handled 230 applications of this type. This one was decided in 24 days, 4 weeks quicker than Westminster's typical decision time. The site is in the Harley Street conservation area, with 3 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 469 applications across WEW_22. We hold 251 applications in total for the W1W postcode area.
86% of non-material amendment applications at City of Westminster were approved. Across all application types, the council typically decides in about 7 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Application details
- Postcode
- W1W 6QD
- Application type
- Non-Material Amendment
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Harley StreetPart of the site
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)
flood storage areas, listed buildings, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Planning history at this site
2 other applications at this property, newest first.
- 20262 Nov
Planning application for the installation of three air conditioning condenser units to the lower ground floor…
PendingFull planning permission26/07443/FULL - 202421 Jun
Proposed External Alterations to Existing Facade Comprising Creation of New Entrance at Ground Floor
PendingFull Planning Permission Application24/04178/FULL
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- 150 Great Portland Street London W1W 6QD24/04178/FULL · FullAwaiting decision0.0 mi
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- Capital House 7 Clipstone Street London W1W 6BD24/01929/ADFULL · ConditionsApproved0.0 mi
- 50 Hallam Street London W1W 6JJ25/03602/LBC · HeritageApproved0.0 mi
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